3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Would You Change the Oil?

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Old Jun 20, 2009 | 10:59 PM
  #31  
dslpwr81's Avatar
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From: Montana
Originally Posted by Spooler
Worst thing in the world you can do with a diesel is lug it. .
Exactly. Keep the RPM's up.
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Old Jun 21, 2009 | 03:50 AM
  #32  
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Pull a sample and send it to Blackstone Lab. You can call them at 260-744-2380 . Ask them to send you a sample kit.Also ask them how you should catch your sample. You can pull it out of the dip stick hole or drain it. If you drain it let the first gal run out before you catch a sample.Then you can put it back in.Then Waite till you get the report from them. They will e-mail you with the report then send you a print out of it.This will tell you of the shape your Eng and oil is.====GOOD LUCK
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Old Jun 21, 2009 | 04:45 AM
  #33  
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Oil analysis is a tool. As with any given tool, you may or may not need it depending on what you are trying do and your particular equipment's circumstances. The vast majority don't need it. It is a very useful tool to enable safely extending oil change intervals for people who know how to use it. One year in a POV is not an extended oil change interval.

And as with any tool, just having it doesn't mean you know the proper way to use it, either. It becomes relevant as a trend over time and multiple samples. One bad report means nothing. Labs have been known to make mistakes. Why anyone would send in a sample of known bad oil is beyond me. Feeling spendy that day maybe?
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Old Jun 21, 2009 | 07:19 PM
  #34  
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From: Monroe, Ga.
The reason I sent in a sample on a known engine was to test them as to how good a job they were doing . They flunked.
As far as finding fuel in the oil, just drip a few drops on a plain brown cardboard box. If it is absorbed immediately, you have fuel in the oil.
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Old Jun 22, 2009 | 12:20 AM
  #35  
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From: Arizona - The Photo Radar Rip-off State
[QUOTE=dslpwr81;2508891]
Originally Posted by LeonT
I do have life insurance though,

Not sure what you mean by "keep the rpm's up", but the standard we've always used is 1,800 to 2,100 rpm. I believe advocating that anyone routinely run a diesel truck above that is asking for trouble.

QUOTE]



Should have elaborated a little more on the "keep the rpm's up." As in, not ideing for extended periods of time. There's still a lot of discussion about the idling being a negative or not. I'm on the side of saying is not all that great on any of the common rails.

Agreed. I don't idle mine for extended periods.
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Old Jun 23, 2009 | 09:29 AM
  #36  
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GSW
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Originally Posted by pevaguy
The reason I sent in a sample on a known engine was to test them as to how good a job they were doing . They flunked.
As far as finding fuel in the oil, just drip a few drops on a plain brown cardboard box. If it is absorbed immediately, you have fuel in the oil.
In a round about way I did the same thing. Sent in a sample from my Jeep 4.0 that I was fairly sure had a cracked head (the infamous 0331 casting for all the Jeep guys). Blackstone actually gave me a call to alert me to the high water/antifreeze content in addition to emailing the full results. Just wanted to relay a similar story with different results. Nothing wrong with getting a little more info to confirm your suspicions.

I just got a sample back on Chevron Delo 15W/40 changed at 5100 miles and all is good with plenty of life left in the oil. I'll probably be switching to 7500 intervals. I only put about 10k miles on per year, with a lot of short trips that juuust barely get up to operating temp, especially during the winter.
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Old Jun 24, 2009 | 12:47 AM
  #37  
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From: Colorado
Originally Posted by GSW
Nothing wrong with getting a little more info to confirm your suspicions.
Absolutely - suspicions. Excellent time to get a sample tested. Good use of the tool. I've heard numerous accounts of Blackstone people picking up the phone to call in situations like that.
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Old Jun 26, 2009 | 03:14 PM
  #38  
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Seems simple enough to me to change oil & filter at 6-months or 6,000-miles. The engine is way too expensive to be cheap about PM work.

After a year of owning mine I just went ahead and added also changing air and fuel filters. The annual expense is minimal.

Time is JUST as important as mileage. Oil and all the filters are cheap by comparison to any engine degradation.

And, while oil analysis is cheap, working with an independent oil analyst is better yet, IMO.

I've used the services of this firm on several vehicles and recommend them highly (you can find old posts on www.bobistheoilguy.com)

http://www.dysonanalysis.com/
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